Contact AllCalcHub
For any question, correction, update or business enquiry, email allcalchub@gmail.com. Every message is read by a person, and we aim to reply within a few working days.
Email: allcalchub@gmail.com
Report a wrong answer
Accuracy matters more to us than anything else on the site. If a result looks wrong, please send:
- the page address from your browser (it includes the numbers you entered);
- the answer you expected and where it comes from, such as a textbook, a bank statement or another tool.
Suggest a calculator or an improvement
Tell us what you were trying to work out and which country’s rules apply, if any. Requests that many people share are built first.
Advertising, partnerships and business
For advertising, partnership, licensing or other business enquiries, email us with a short description of what you have in mind.
Privacy and legal
For questions about data, cookies or ads, the Privacy Policy explains what is stored on your device and how ads work. For anything it does not answer, for a privacy request, a copyright concern or a question about the Terms of Use, email us with “Privacy” or “Legal” in the subject.
Email a privacy or legal question
What we can’t help with
We can’t give personal financial, investment, tax, medical or legal advice, or check numbers you don’t want to share. The calculators give estimates to help you plan; for decisions, please talk to a qualified professional. Please don’t send passwords, bank details or other sensitive information by email.